kernel BUG at fs/ext4/inode.c:2722! invalid opcode: 0000 [#2] PREEMPT SMP KASAN CPU: 1 PID: 154 Comm: kworker/u4:2 Tainted: G D 5.15.138-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 Workqueue: writeback wb_workfn (flush-7:5) RIP: 0010:ext4_writepages+0x3d02/0x3d10 fs/ext4/inode.c:2721 Code: c7 10 77 a8 8c 4c 89 f2 e8 2b a8 0b 02 e9 bb fb ff ff e8 d1 09 63 ff 0f 0b e8 0a 70 fe 07 e8 c5 09 63 ff 0f 0b e8 be 09 63 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 41 54 53 49 RSP: 0018:ffffc90001b7eec0 EFLAGS: 00010293 RAX: ffffffff821d1892 RBX: 0000008000000000 RCX: ffff88801297d940 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc90001b7f2b0 R08: ffffffff821ce230 R09: ffffed100e71c785 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90001b7f180 R13: ffffc90001b7f670 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd8038b6d58 CR3: 00000000196f2000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_writepages+0x481/0x730 mm/page-writeback.c:2364 __writeback_single_inode+0x15b/0xe30 fs/fs-writeback.c:1630 writeback_sb_inodes+0xbce/0x1a40 fs/fs-writeback.c:1913 __writeback_inodes_wb+0x114/0x400 fs/fs-writeback.c:1984 wb_writeback+0x465/0xc50 fs/fs-writeback.c:2089 wb_check_background_flush fs/fs-writeback.c:2155 [inline] wb_do_writeback fs/fs-writeback.c:2243 [inline] wb_workfn+0xd07/0x1130 fs/fs-writeback.c:2271 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Modules linked in: ---[ end trace 685d172f7d589d5d ]--- RIP: 0010:ext4_writepages+0x3d02/0x3d10 fs/ext4/inode.c:2721 Code: c7 10 77 a8 8c 4c 89 f2 e8 2b a8 0b 02 e9 bb fb ff ff e8 d1 09 63 ff 0f 0b e8 0a 70 fe 07 e8 c5 09 63 ff 0f 0b e8 be 09 63 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 41 56 41 54 53 49 RSP: 0018:ffffc90004996ec0 EFLAGS: 00010293 RAX: ffffffff821d1892 RBX: 0000008000000000 RCX: ffff88801ca50000 RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000 RBP: ffffc900049972b0 R08: ffffffff821ce230 R09: ffffed100e71c646 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90004997180 R13: ffffc90004997670 R14: 000000c410000000 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd80396e418 CR3: 000000001ede5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400